STRAW Classification Calculator
Find out which reproductive-aging stage you are in — reproductive years, perimenopause (menopausal transition) or postmenopause.
The Stages of Reproductive Aging Workshop (STRAW +10) system is the international standard clinicians use to describe where a woman is on the journey from her reproductive years to menopause. Its principal criterion is your menstrual bleeding pattern — how regular, variable or absent your periods have become — supported where helpful by hormone markers such as FSH and AMH. Answer the questions below to see your likely stage, what it means, and practical next steps. This is an educational guide, not a diagnosis; confirm your stage and plan with Dr. Neha Singhania.
This bleeding pattern is the main factor in STRAW staging.
2. Optional — supportive information
Add any you have; they refine the result but are not required.
This tool applies the STRAW +10 criteria for educational purposes and does not replace a medical assessment. Certain situations (after hysterectomy or endometrial ablation, on hormonal contraception, or with irregular bleeding causes) need clinical evaluation. Always confirm your stage with your doctor.
STRAW Classification — FAQs
What is the STRAW classification (STRAW +10)?
STRAW stands for the Stages of Reproductive Aging Workshop. The updated STRAW +10 system is the international gold standard for staging a woman’s reproductive life into 10 stages — from the reproductive years, through the menopausal transition (perimenopause), to postmenopause — anchored around the final menstrual period.
How does this calculator decide my stage?
STRAW +10 uses your menstrual bleeding pattern as the principal criterion, so this tool classifies you mainly from how regular or variable your cycles have become. Optional FSH, AMH and symptom inputs are used only as supportive information, exactly as the STRAW guidelines recommend.
What is the difference between perimenopause and menopause?
Perimenopause is the menopausal transition — the years of changing, then skipped, periods leading up to your last one (STRAW stages −2 and −1). Menopause is confirmed only after 12 full months with no period; the time after that is called postmenopause (stage +1 onwards).
Do I still need contraception during the menopausal transition?
Yes. Ovulation can still happen unpredictably until you are truly postmenopausal, so pregnancy is still possible during perimenopause. Contraception is generally advised until 12 months of no periods (or 24 months if you are under 50). Discuss the safest method for you with Dr. Neha Singhania.
Do I need FSH or AMH blood tests to know my stage?
Usually not. For most women over 45 with typical symptoms, bleeding pattern alone stages you reliably. Hormone tests (FSH, AMH, estradiol) mainly help in younger women, after hysterectomy, or where the picture is unclear. This tool works with or without them.